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Related Experiment Video

Updated: Jun 7, 2026

A Method to Study Adaptation to Left-Right Reversed Audition

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Asynchrony adaptation reveals neural population code for audio-visual timing.

Neil W Roach¹, James Heron, David Whitaker

¹Visual Neuroscience Group, School of Psychology, The University of Nottingham, Nottingham, UK. nwr@psychology.nottingham.ac.uk

Proceedings. Biological Sciences

|October 22, 2010

Summary

This summary is machine-generated.

Sensory perception adapts to audio-visual timing delays, changing how we perceive simultaneity. This study reveals a neural population coding model explaining these flexible multisensory timing shifts.

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Area of Science:

Neuroscience
Computational Neuroscience
Psychophysics

Background:

The brain uses relative timing of auditory and visual stimuli to link sensory signals and infer causality.
Perception of multisensory timing is flexible, with adaptation to delays altering simultaneity judgments.

Purpose of the Study:

To investigate the effect of audio-visual asynchrony adaptation on the perception of sub-second temporal relationships.
To propose a neural model explaining the observed biases in perceived timing.

Main Methods:

Measuring the impact of audio-visual asynchrony adaptation on temporal perception across various sub-second intervals.
Developing and testing a neural population coding model against experimental data.

Main Results:

Distinct bias patterns were observed, inconsistent with simple perceptual latency shifts.
A neural population coding model accurately accounted for the adaptation effects.
Adaptation was found to modify neuronal response gain within the population code.

Conclusions:

Multisensory timing is likely represented by a dedicated neural population code.
Shifts in perceived simultaneity after asynchrony adaptation involve neural processes similar to other perceptual after-effects.